CoolMax Technology-Extreme Wicking. Soft Jacquard Elastic Band. Excellent Helmet Liner or Worn Alone Crafted from a special blend of CoolMax and Spandex, these athletic style caps are ideal for under helmet wear or alone for that special look. CoolMax is a high performance fabric that dries super fast and reduces skin temperature when wearing it. Created using our custom sweat band elastic, a super soft, comfortable stretchy band that secures the cap to your head. Made in the USA